In order to integrate Fanstatic with your web framework, make sure the
following conditions are met:

base_url: if your web framework supports virtual hosting, make sure
to set the base_url attribute on the NeededResources object.

Error pages: if your web framework renders error pages, make sure to
clear the NeededResources before rendering the error page, in order to
prevent resources from the original page 'leaking' onto the error page.

URL calculation: Fanstatic can also serve non-JavaScript and non-CSS
resources (such as images) that you link to from the views in your
application. In order to do so, we advise to support rendering URLs to
resources from the view/page templates in your web framework.